Which of the following was one of the first reasons that slaves were imported into the United States? A) economic systems requiring free labor for success
B) the need for consistent agricultural labor
C )the circular trade surrounding the Atlantic
D) Europe's demand for more goods from the Americas

d) he bring down boss tweed and tammany hall.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.